Shape engineering of particles to create a narrow spectral filter against a specific portion of the light spectrum
Disclosed herein are compositions and methods comprising a composition for light filtering. An example composition comprises a plurality of metal nanoparticles, at least a portion of the plurality of metal nanoparticles having an anisotropic shape; and a stabilizing mechanism disposed to selectively couple with at least a portion of the plurality of metal nanoparticles, wherein the composition exhibits a peak light filtering value in the range of about 600 nm to about 850 nm.
1. A composition for light filtering, the composition comprising:
a base material;
a plurality of gold nanoparticles dispersed in the base material, at least a portion of the plurality of gold nanoparticles having an anisotropic shape;
a stabilizing mechanism disposed to selectively couple with the at least a portion of the plurality of gold nanoparticles to enhance stability of the at least the portion of the plurality of gold nanoparticles in the base material, the stabilizing mechanism comprises a molecular weight of 10 kDa poly(vinyl pyrrolidone), or from 55 kDa to 1300 kDa poly(vinyl pyrrolidone);
wherein the base material comprises a biomaterial, a biomaterial matrix, hydrogel;
wherein the composition exhibits a peak light filtering value in the range of about 600 nm to about 850 nm, and
wherein the anisotropic shape is tuned such that the composition exhibits a filtering spectrum having a full-width at half maximum of about 54 nm-58 nm.
2. The composition according to claim 1 , wherein the anisotropic shape is tuned by configuring one or more of: an aspect ratio defined by a quotient of major and minor axes length; and a volume.
3. The composition according to claim 1 , wherein the anisotropic shape is tuned to exhibit an aspect ratio of about 1.9 to about 2.9, as defined by a quotient of major and minor axes length.
4. The composition according to claim 1 , wherein the anisotropic shape is tuned to exhibit a volume of about 1,250 nm 3 up to about 30,000 nm 3 .
5. The composition according to claim 1 , wherein the anisotropic shape is tuned to exhibit an aspect ratio of about 1.9 to about 2.9, as defined by a quotient of major and minor axes length and wherein the anisotropic shape is tuned to exhibit a volume of about 1,250 nm 3 up to about 30,000 nm 3 .
6. The composition according to claim 1 , wherein the base material comprises the biomaterial.
7. The composition according to claim 1 , wherein the base material comprises the biomaterial matrix.
8. The composition according to claim 1 , wherein the base material comprises the hydrogel.
9. The composition according to claim 8 , wherein the base material comprises silicone-based hydrogel.
10. The composition according to claim 1 , wherein the at least a portion of the plurality of gold nanoparticles are grown from a pentatwinned gold seed.
11. The composition according to claim 1 , wherein the anisotropic shape comprises a bipyramid shape.
12. The composition according to claim 11 , wherein the bipyramid shape comprises a longitudinal peak and a transverse peak, and wherein a sharpness of the bipyramid shape relative to the longitudinal peak and the transverse peak is tuned such that the composition exhibits a peak light filtering in the range of about 600 nm to about 850 nm.
13. The composition according to claim 1 , wherein the anisotropic shape comprises a bipyramid shape with each a pair of opposing truncated peaks disposed on opposing ends.
14. The composition according to claim 13 , wherein a sharpness of the bipyramid shape is tuned such that the composition exhibits a peak light filtering in the range of about 600 nm to about 850 nm.
15. The composition to according to claim 1 , wherein the stabilizing mechanism enhances colloidal stability, thermal stability, or both of the at least the portion of the plurality of gold nanoparticles in the base material.
16. The composition according to claim 1 , wherein the stabilizing mechanism enhances biocompatibility of the at least the portion of the plurality of gold nanoparticles in the base material.
17. The composition according to claim 1 , wherein the stabilizing mechanism comprises the 55 kDa poly(vinyl pyrrolidone).
18. The composition according to claim 1 , wherein the stabilizing mechanism comprises one or more of 10 kDa poly(vinyl pyrrolidone), 55 kDa poly(vinyl pyrrolidone), 360 kDa poly(vinyl pyrrolidone), 1300 kDa poly(vinyl pyrrolidone).
19. The composition according to claim 1 , wherein the stabilizing mechanism chemically binds with the at least a portion of the plurality of gold nanoparticless to enhance colloidal stability of the at least the portion of the plurality of gold nanoparticles in the base material.
20. A method of making the composition according to claim 1 .
21. The method according to claim 20 , wherein the at least a portion of the plurality of gold nanoparticles are grown from a pentatwinned gold seed.
22. A contact lens comprising the composition for light filtering according to claim 1 ,
wherein the contact lens is a free radical reaction product of a reactive mixture comprising:
one or more silicone-containing components and one or more hydrophilic components; the contact lens having a water content of at least about 20 weight percent and an oxygen permeability of at least about 80 barrers.
23. The contact lens according to claim 22 wherein the composition comprises the plurality of nanoparticles dispersed in the contact lens.
24. The contact lens according to claim 23 , wherein the plurality of nanoparticles comprise plasmonic nanoparticles.
25. The contact lens according to claim 23 , wherein the plurality of nanoparticles comprise metal nanoparticles.
26. The contact lens according to claim 23 , wherein the plurality of nanoparticles comprise gold nanoparticles.
27. The contact lens according to claim 22 , wherein a shape of at least a portion of the nanoparticles is tuned by configuring one or more of: an aspect ratio defined by a quotient of major and minor axes length; and a volume.
28. The contact lens according to claim 22 , wherein a shape of the at least a portion of the nanoparticles is tuned by configuring one or more of: an aspect ratio defined by a quotient of major and minor axes length; and a volume.
29. The contact lens according to claim 28 , wherein the shape of the at least a portion of the nanoparticles is tuned to exhibit an aspect ratio of about 1.9 to about 2.9, as defined by a quotient of major and minor axes length.
30. The contact lens according to claim 22 , wherein the shape of the at least a portion of the nanoparticles is tuned to exhibit a volume of about 1,250 nm 3 up to about 30,000 nm 3 .
31. The contact lens according to claim 22 , wherein the shape of the at least a portion of the nanoparticles is tuned to exhibit an aspect ratio of about 1.9 to about 2.9, as defined by a quotient of major and minor axes length and wherein the anisotropic shape is tuned to exhibit a volume of about 1,250 nm 3 up to about 30,000 nm 3 .
32. A composition for light filtering, the composition comprising:
a plurality of metal nanoparticles, at least a portion of the plurality of metal nanoparticles having an anisotropic shape;
a stabilizing mechanism disposed to selectively couple with the at least a portion of the plurality of metal nanoparticles, the stabilizing mechanism comprise a molecular weight of 10 kDa poly(vinyl pyrrolidone), or from 55 kDa to 1300 kDa poly(vinyl pyrrolidone);
wherein the composition exhibits a peak light filtering value in the range of about 600 nm to about 850 nm, and
wherein the anisotropic shape is tuned such that the composition exhibits a filtering spectrum having a full-width at half maximum of about 54 nm-58 nm.
33. The composition according to claim 32 , wherein the anisotropic shape is tuned by configuring one or more of: an aspect ratio defined by a quotient of major and minor axes length; and a volume.
34. The composition according to claim 32 , wherein the anisotropic shape is tuned to exhibit an aspect ratio of about 1.9 to about 2.9, as defined by a quotient of major and minor axes length.
35. The composition according to claim 32 , wherein the anisotropic shape is tuned to exhibit a volume of about 1,250 nm 3 up to about 30,000 nm 3 .
36. The composition according to claim 32 , wherein the anisotropic shape is tuned to exhibit an aspect ratio of about 1.9 to about 2.9, as defined by a quotient of major and minor axes length and wherein the anisotropic shape is tuned to exhibit a volume of about 1,250 nm 3 up to about 30,000 nm 3 .
37. The composition according to claim 32 , wherein the anisotropic shape comprises a bipyramid shape.
38. The composition according to claim 37 , wherein the bipyramid shape comprises a longitudinal peak and a transverse peak, and wherein a sharpness of the bipyramid shape relative to the longitudinal peak and the transverse peak is tuned to exhibit a peak light filtering in the range of about 600 nm to about 850 nm.
39. The composition according to claim 32 , wherein the anisotropic shape comprises a bipyramid shape with each a pair of opposing truncated peaks disposed on opposing ends.
40. The composition according to claim 39 , wherein a sharpness of the bipyramid shape is tuned such that the composition exhibits a peak light filtering in the range of about 600 nm to about 850 nm.
41. The composition of claim 32 , wherein the stabilizing mechanism comprises the poly(vinyl pyrrolidone).
42. The composition of claim 32 , wherein the stabilizing mechanism comprises one or more of 10 kDa poly(vinyl pyrrolidone), 55 kDa poly(vinyl pyrrolidone), 360 kDa poly(vinyl pyrrolidone), 1300 kDa poly(vinyl pyrrolidone).
43. The composition according to claim 32 , wherein the stabilizing mechanism chemically binds with the at least a portion of the plurality of metal nanoparticles to enhance colloidal stability of the at least the portion of the plurality of metal nanoparticles.
44. A method according to making the composition of claim 1 .
45. The method according to claim 44 , wherein the at least a portion of the plurality of metal nanoparticles are grown from a pentatwinned metal seed.